834621 has 4 divisors (see below), whose sum is σ = 1112832. Its totient is φ = 556412.

The previous prime is 834611. The next prime is 834623. The reversal of 834621 is 126438.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 834621 - 2¹⁰ = 833597 is a prime.

It is a D-number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 834591 and 834600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139101 + ... + 139106.

It is an arithmetic number, because the mean of its divisors is an integer number (278208).

2⁸³⁴⁶²¹ is an apocalyptic number.

It is an amenable number.

834621 is a deficient number, since it is larger than the sum of its proper divisors (278211).

834621 is a wasteful number, since it uses less digits than its factorization.

834621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278210.

The product of its digits is 1152, while the sum is 24.

The square root of 834621 is about 913.5759410142. The cubic root of 834621 is about 94.1520475735.

The spelling of 834621 in words is "eight hundred thirty-four thousand, six hundred twenty-one".